초록 열기/닫기 버튼
The investigation is directed to lead free (Pb-free) frits that can be used for organic light emitting diode, plasma display screen devices and other sealing materials. P_2O_5-SnO system glasses have been prepared for Pb-free low temperature glass frit. Structure and properties of the glasses with the composition SnO-xB_2O_3-(60-x)P_2O_5 (x=0, 5, 10, 15, 20, 25, 30, 35, 40 mol%) were characterized by infrared spectra (IR), X-ray diffraction(XRD), Density, Molar volume, Thermo mechanical analysis(TMA) and weight loss after immersion test. Glass transition temperature(T_g), dilatometric softening temperature(T_d) and chemical durability increased, and coefficient of thermal expansion(α) decrease with the substitution of B_2O_3 for P_2O_5 in the range of 0~25 mol%.
